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Summary
  • The P3441 code stands for “Cylinder 6 Deactivation/Intake Valve Control Circuit/Open,” which means the powertrain control module (PCM) detects improper voltage or resistance within the cylinder 6 deactivation/intake valve control circuit.
  • A low engine oil level, variable valve timing solenoid malfunction, and wiring problems are common causes of the P3441 code.
  • The common symptoms of the P3441 code include an illuminated check engine light, poor engine performance, and decreased fuel economy.

Vehicles are made up of several systems that all work together to keep the engine running smoothly. Some have cylinder deactivation systems to meet fuel and emission standards. This deactivation system enables the powertrain control module (PCM) to disable select cylinders when the engine doesn’t need them. Code P3441 is a trouble code related to a fault in this system.

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What Does the P3441 Code Mean?

Diagnostic trouble code P3441 stands for “Cylinder 6 Deactivation/Intake Valve Control Circuit/Open.” The PCM sets it when it detects improper voltage or resistance within the cylinder 6 deactivation/intake valve control circuit.

The cylinder 6 deactivation/intake valve control circuit accommodates the cylinder deactivation feature for V4 and V8 engines. It improves fuel economy during light load operations, such as highway driving. The PCM regulates the engine’s 4 or 8-cylinder modes by activating the intake and deactivating solenoids for four of the engine’s cylinders.

car v8 engine covered with plastic
The cylinder 6 deactivation/intake valve control circuit accommodates the cylinder deactivation feature for V4 and V8 engines.

The P3441 code refers to the sixth cylinder, and the other three cylinders in this process are determined by the engine configuration and cylinder firing order. Depending on the vehicle and configuration, the number one cylinder deactivation solenoid is mounted on or near the intake near that cylinder.

If the PCM detects an irregularity in voltage or resistance within cylinder 6, it’ll trigger the P3441 code.

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Note: The definition of code P3441 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P3441 Code?

What are the Common Symptoms of the P3441 Code?

How to Diagnose the P3441 Code

Many vehicles can log DTC P3441. However, that doesn’t mean that there’s a universal diagnostic and repair procedure for it.

If you want to diagnose a P3441 code on your own, you’ll have to have an in-depth understanding of how the engine and fuel system work. You also need to have the right tools and DIY know-how for the job. If you don’t, you can always have a certified mechanic do the job for you.

How to Fix the P3441 Code

Resolving a DTC P3441 code can be hard. If you don’t have the right tools and technical know-how to get the job done, you might make the problem worse. So if you’re not confident about addressing the issue yourself, it’s best to take your vehicle to a trained professional to ensure all repair steps and protocols are followed properly.

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But if you think you can handle the problem on your own, make sure you have the right information before proceeding. Remember that there is no one-size-fits-all solution that works on all makes and models. Before you start, you might want to look into Chilton guides or an ALLDATA membership to get vehicle-specific repair information.

About The Authors
Written By Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Reviewed By Contact Center Manager and Technical Reviewer at CarParts.com

William “Bill” Guzenski has produced hundreds of how-to videos for the automotive community. He’s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

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